Solving for sin(xi): A Mathematical Exploration

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epkid08
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If:
[tex]sin(i)=i \frac{e^2 - 1}{2e}[/tex]

what does sin(xi) equal?
 
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Are you allowed to use Euler's Identity;

[tex]sin(\theta)=\frac{e^{i\theta}-e^{-i\theta}}{2i}[/tex]

?